Some viscous fluid cosmological models in general relativity
We investigate two viscous fluid cosmological models in general relativity in which the expansion is only in two directions, i.e. one of the Hubble parameters (\(H_1= {A_4\over A}\)) is zero. In the first model, coefficient of shear viscosity is assumed to be constant while in the second model, the coefficient of shear viscosity is proportional to the rate of expansion in the model. No additional condition is assumed except for coefficient of shear viscosity. We discuss physical and geometrical aspects of the models.
scientific article; zbMATH DE number 1218377